This section describes the basic steps to be taken when setting up the analyzer for the first time.
Unpacking the instrument
Connecting to the AC power supply
|
|
Attention! Before turning on the instrument, please make sure that the following conditions are fulfilled:
Non-observance may cause damage to the instrument!
|
To remove the instrument from its packaging and check the equipment for completeness proceed as follows:
Pull off the polyethylene protection pads from the instrument's rear feet and then carefully remove the pads from the instrument handles at the front.
Pull off the corrugated cardboard cover that protects the rear of the instrument.
Carefully unthread the corrugated cardboard cover at the front that protects the instrument handles and remove it.
Check the equipment for completeness using the delivery note and the accessory lists for the various items.
Check the instrument for any damage. If there is damage, immediately contact the carrier who delivered the instrument.
Retain the original packing material. If
the instrument needs to be transported or shipped at a later date, you
can use the material to prevent control elements and connectors from being
damaged.
The network analyzer is designed for use under laboratory conditions, either on a bench top or in a rack. The general ambient conditions required at the operating site are as follows:
The ambient temperature must be in the ranges specified for operation and for compliance with specifications (see data sheet).
All fan openings including the rear panel perforations must be unobstructed. The distance to the wall should be at least 10 cm.
|
|
Attention! To avoid damage of electronic components of the DUT and the analyzer, the operating site must be protected against electrostatic discharge (ESD). ESD is most likely to occur when you connect or disconnect a DUT or test fixture to the analyzer's test ports. To prevent ESD damage use the wrist strap and grounding cord supplied with the instrument and connect yourself to the GND connector at the front panel.
|
If the analyzer is operated on a bench top, the surface should be flat.
The instrument can be used in horizontal position, standing on its feet, or with the support feet on the bottom extended.
|
|
Caution! The feet must be fully folded in or out. Only in this way can the stability of the analyzer be guaranteed and reliable operation be ensured. The total weight on the extended feet (including the analyzer's weight and other units placed on top) must not exceed 500 N. The units must be secured against slipping (e.g. by locking the feet at the upper front frame).
When moving the unit with expanded feet, the feet might collapse and fold in. To avoid injuries, the unit must therefore not be moved with the feet out.
|
Using the adapter R&S ZZA-611 (order number 1096.3302.00, for large size units) or R&S ZZA-511 (order number 1096.3290.00, for compact size units) the instrument can be mounted in 19" racks according to the mounting instructions supplied with the rack adapter.
|
|
Attention!
|
To suppress generated Electromagnetic Interference (EMI), operate the instrument only while it is closed, with all shielding covers fitted. Note the EMC classification in the data sheet.
Use appropriate shielded cables to ensure successful control of electromagnetic radiation during operation, especially for the following connector types:
BNC rear panel connectors (10 MHz REF, EXT. TRIGGER): Use double shielded cables and terminate open cable ends with 50 Ω.
USER CONTROL, UNIVERSAL INTERFACE: Use only well shielded cables or disconnect the input pins of the USER CONTROL connector in order to avoid spurious input signals which may cause undesirable events. This is of particular importance for the external trigger input (pin no. 2 of USER CONTROL) if the EXT TRIGGER input is used.
USB: Use double-shielded USB cables and ensure that external USB devices comply with EMC regulations.
GPIB (IEEE/IEC 625): Use a shielded GPIB cable.
LAN: Use CAT6 or CAT7 cables.
Test ports: For instruments with 3.5 mm connector types, use double-shielded measurement cables.
The use of external accessories for the network analyzers may introduce additional connector, cable, and cable length requirements. Refer to the relevant documentation.
The network analyzer is automatically adapted to the AC supply voltage supplied. The supply voltage must be in the range 100 V to 240 V; 50 Hz to 60 Hz. The mains connector is located at the bottom left corner of the rear panel.
Connect the network analyzer to the AC power source using the AC power cable delivered with the instrument.
The maximum power consumption of the analyzer is 450 W. The typical power consumption of the individual analyzer models are is listed in the "Specifications".
The network analyzer is protected by two fuses as specified on the label on the power supply. The fuses are located on an AC Fuse Board (order no. 1145.3906.02) which must be replaced to change the fuses. Replacing the AC Fuse Board requires opening the instrument and is described in the service manual.
The mains connector is located at the bottom left corner of the rear panel.
To turn the power on or off, press the AC power switch to position I (On) or 0 (Off).
After power-on, the analyzer is in standby or ready state, depending on the state of the STANDBY toggle switch at the front panel when the instrument was switched off for the last time.
The AC power switch can be permanently on.
Switching off is required only if the instrument must be completely removed
from the AC power supply.
The STANDBY toggle switch is located in the bottom left corner of the front panel.
After switching on the AC power, press the STANDBY key briefly to switch the analyzer from the standby to ready state or vice versa.
In standby state, the right, amber LED is on. The standby power only supplies the power switch circuits and the optional oven quartz (OCXO, 10 MHz reference oscillator, option ZVAB-B4, order no. 1164.1757.02). In this state it is safe to switch off the AC power and disconnect the instrument from the power supply.
In ready state, the left, green LED is on. The analyzer is ready for operation. All modules are power-supplied and the analyzer initiates its startup procedure.
|
|
Caution! The instrument is still power-supplied while it is in standby mode. |
|
Remote control: |
The DC inputs PORT BIAS at the rear panel are each protected by a fuse IEC 127 - F 250 L (250 mA quick acting).
To replace the fuses open the fuse holder by slightly turning the lid counterclockwise.
